poor service, ********** actions

I have a contract with Elie mobile since June 2013, On the 11th of April 2015 my phone was ****** while on Holiday. Margate SAPS 300/04/2015. On Monday the 13th of April I Contacted Elite mobile to block my line and give me a letter so that I can do a sim swap at Vodacom my service provider. I was told to pay R150 and they will courier me a new sim card they do not supply letters. I have made several calls and even paid another R78 to cancel my contract completely. as the company I work for has reprimanded me for not being contactable and our clients can not reach me my number is on all our business cards. I have my own after hour business and cannot be reached for bookings its been almost a month and all I want is my contract cancelled and my number made available on prepaid immediately, as this is getting to a point where I can loose my job.They keep giving me excuses and I feel they have now ****** my money I have never been late with a payment to them and its at the point where they don't even take my calls and put the phone down as soon as they realise its me calling. I need my number available so I can do a sim swap and carry on with my life I will open a SAP ***** case.